Browsing by Author "Silva Leal, Jorge Antonio (Director)"
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Item Aplicación del internet de las cosas (IoT) en la gestión de almacenes - Una revisión de nuevas propuestas(Universidad Santiago de Cali, 2019) Morales Sarria, David Felipe; Silva Leal, Jorge Antonio (Director)The Internet of Things (IoT) is a key concept of the fourth industrial revolution and is considered one of the most promising areas for controlling and improving supply chain performance. This manuscript is an exploration of new proposals for Internet of Things applications in warehouse management over the past five years. A review of the academic literature published between 2015 and 2019 was conducted, with the goal of providing a full description of the cumulative state of research on this topic. Warehousing operations were investigated in the context of five main functions: reception, storage, picking, packing, and shipping. Contributions associated with the use of radio frequency identification (RFID) in reception operations and the use and integration of the Warehouse Management System (WMS) for the support of storage activities and optimization of safety conditions and product profiling are noteworthy. Also, proposals related to Automated Guided Vehicle (AVG) and database management systems to minimize search, travel time, and to avoid picking errors, design of automated packaging systems for packing operations, and a tracking system for the delivery of goods in shipping operations, are highlighted as well. Finally, this synthesis reveals that these types of proposals continue to be a topic of interest in research concerning supply chain management, offering reliable bibliographic support that can be used as a starting point in the consultation and formulation of new initiatives for future researchers or professionals in this field.Item Evaluación de la eficiencia de remoción de mercurio y plomo en el filtro Ekofil- Plus usado en el tratamiento de agua a nivel familiar(Universidad Santiago de Cali, 2019) Bacca Jordán, Maria Camila; Giraldo Tenorio, Giovanna Andrea; Silva Leal, Jorge Antonio (Director)The limited availability of access to drinking water has led to the exploration of different forms and techniques of water treatment for human consumption, thus ensuring that its use does not create risks, for this reason the company REPLACOL has constructed ceramic filters that contribute to the potabilization on this precious and vital resource. According to the above, this research project was generated which aimed to measure to the effectiveness of EKOFIL PLUS clay filters, in terms of removal of mercury and lead complying with the norm 2115/2007 (MAVDT, 2007). This was done by comparing and analyzing factors influencing water quality from the synthetic mixture of the fluid with these metals. For this, during X days four filters, two Ekofil filters and two Ekofil plus filters were operated, under controlled laboratory conditions, measuring at different intervals pH, conductivity, turbidity, and the two response variables Hg and Pb. The results showed a removal of more than 90% of the filtered effluent in terms of heavy metals and values that oscillate within permissible limits for variables such as pH, conductivity and turbidity; which had a removal percentage of 96%.Item Evaluación del crecimiento y desarrollo vegetal del rábano a partir del aprovechamiento de los lodos en un sistema de tratamiento de agua residual(Universidad Santiago de Cali, 2024) Victoria Villalba, Hernán Felipe; Cárdenas Talero, José Luis (Director); Silva Leal, Jorge Antonio (Director)In recent years, population growth has significantly increased the demand for natural resources and the generation of wastewater. In this context, it is essential to integrate Wastewater Treatment Plants (WWTPs) into a circular economy. WWTPs produce reusable by-products such as gas, treated wastewater, and sludge. Stabilized sludge (biosolids) contains nutrients that can improve soil and substitute chemical fertilizers in agriculture. This study evaluates the suitability of secondary sludge and drying sludge from a WWTP with an extended aeration activated sludge system for use in radish cultivation. Pots of 0.7 L were used, and the treatments included a control group (soil and mineral fertilizer) and an experimental group with sludge applications at different rates, according to the nitrogen (N) and phosphorus (P) requirements for radish cultivation. The results showed that secondary sludge did not achieve optimal radish development compared to the controls. However, dehydrated sludge demonstrated beneficial effects, with significant increases in leaf area and plant biomass compared to the controls. Analysis of variance (ANOVA) and Tukey's test showed significant differences in the variables, highlighting dehydrated sludge at 2P dosage as the most effective. Dehydrated sludge significantly improved the growth and development of radishes, suggesting it as an effective and sustainable alternative, promoting sustainable agricultural practices and reducing dependence on chemical fertilizers. However, both secondary and dehydrated sludge present a risk due to pathogen content, underscoring the need to implement sanitization treatments to reduce this pathogen content.Item Evaluación del efecto de la plata coloidal sobre la calidad química del agua filtrada de dos modelos de filtros caseros(Universidad Santiago de Cali, 2019) Avilés Torres, Bryan Camilo; Narváez Garavito, María Alejandra; Silva Leal, Jorge Antonio (Director)The purification of water and sanitation is a public health problem, where the technological gap in water treatment systems between the urban and rural population is evident, therefore, to minimize this problem, various treatment systems are implemented to supply water. Drinking water of communities with socio-economic limitations among them are the systems of home purification as the filter system by filtering bed of ceramic vessel. In this study we evaluated a ceramic pot filtration system, called Ekofil and Ekofil plus, which consists of a clay pot impregnated with colloidal silver and the Ekofil plus that has an activated carbon cartridge reinforcement impregnated with colloidal silver. The concentration of silver on the filtered effluent was evaluated in two models of ceramic pot filters used in the treatment of water for human consumption, for which the measurement of two types of synthetic water was carried out under controlled laboratory conditions for 10 weeks. The results obtained in both filtration models showed that the silver leaching was below the limit of 0.1 mg / L established by the EPA. According to the control variables pH, conductivity and turbidity, it was evident that the Ekofil filter was the one most in accord with what was established by Colombian regulations (Resolution 2115 of 2007) with a removal of 95.4%. Both systems of potabilization provide safe water in order to supply rural communities that do not have water treatment systems.